@article{Groza_2019, title={Above-light-line Nonlinear Surface Polaritons near a Conductive Interface: Threshold Case}, volume={8}, url={https://aemjournal.org/index.php/AEM/article/view/742}, DOI={10.7716/aem.v8i1.742}, abstractNote={<p>We investigate the TM-polarized nonlinear surface polaritons (NLSP) propagating along a<br>guided structure consisting of a magnetic optically linear medium and a non-magnetic optically<br>nonlinear medium with saturable permittivity separated by a flat conductive layer of zero<br>thickness. We consider those values of hosting media bulk material parameters for which the<br>NLSP existence (for zero sheet conductance) has threshold character with respect to the waves<br>intensity. Based on the exact solution of Maxwell’s equations we show that the energy and<br>propagation properties of the NLSP near the above-light-line condition (1 &gt; n &gt; 0) depend<br>considerably on the surface conductivity of the layer, even the threshold character of the NLSP<br>can be lost; for certain sheet conductance values these waves can exist in a linear limit. The<br>NLSP propagation constant is defined by both the surface conductivity and field intensity and<br>can be varied in a wide diapason, which gives an opportunity to obtain and control the important<br>for quantum information processing 0 n condition. For a chosen value of the NLSP<br>propagation constant the NLSP field intensity and energy flux decries when the surface<br>conductivity grows; saturation of the nonlinear permittivity leads to an increase of the NLSP<br>energy flux compared with Kerr-like nonlinearity.</p>}, number={1}, journal={Advanced Electromagnetics}, author={Groza, A. D.}, year={2019}, month={Jun.}, pages={91–98} }